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1,012,420

1,012,420 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

1,012,420 (one million twelve thousand four hundred twenty) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 223 × 227. Its proper divisors sum to 1,132,604, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF72C4.

Abundant Number Arithmetic Number Cube-Free Gapful Number Harshad / Niven Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
242,101
Square (n²)
1,024,994,256,400
Cube (n³)
1,037,724,685,064,488,000
Divisor count
24
σ(n) — sum of divisors
2,145,024
φ(n) — Euler's totient
401,376
Sum of prime factors
459

Primality

Prime factorization: 2 2 × 5 × 223 × 227

Nearest primes: 1,012,411 (−9) · 1,012,421 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 20 · 223 · 227 · 446 · 454 · 892 · 908 · 1115 · 1135 · 2230 · 2270 · 4460 · 4540 · 50621 · 101242 · 202484 · 253105 · 506210 (half) · 1012420
Aliquot sum (sum of proper divisors): 1,132,604
Factor pairs (a × b = 1,012,420)
1 × 1012420
2 × 506210
4 × 253105
5 × 202484
10 × 101242
20 × 50621
223 × 4540
227 × 4460
446 × 2270
454 × 2230
892 × 1135
908 × 1115
First multiples
1,012,420 · 2,024,840 (double) · 3,037,260 · 4,049,680 · 5,062,100 · 6,074,520 · 7,086,940 · 8,099,360 · 9,111,780 · 10,124,200

Sums & aliquot sequence

As consecutive integers: 202,482 + 202,483 + 202,484 + 202,485 + 202,486 126,549 + 126,550 + … + 126,556 25,291 + 25,292 + … + 25,330 4,429 + 4,430 + … + 4,651
Aliquot sequence: 1,012,420 1,132,604 1,029,724 981,236 826,444 626,700 1,187,420 1,498,564 1,123,930 928,934 464,470 371,594 185,800 246,650 212,212 295,820 414,484 — unresolved within range

Continued fraction of √n

√1,012,420 = [1006; (5, 4, 6, 19, 1, 3, 4, 7, 1, 1, 1, 2, 20, 1, 1, 2, 2, 3, 13, 29, 11, 6, 1, 6, …)]

Representations

In words
one million twelve thousand four hundred twenty
Ordinal
1012420th
Binary
11110111001011000100
Octal
3671304
Hexadecimal
0xF72C4
Base64
D3LE
One's complement
4,293,954,875 (32-bit)
Scientific notation
1.01242 × 10⁶
As a duration
1,012,420 s = 11 days, 17 hours, 13 minutes, 40 seconds
In other bases
ternary (3) 1220102210001
quaternary (4) 3313023010
quinary (5) 224344140
senary (6) 33411044
septenary (7) 11414443
nonary (9) 1812701
undecimal (11) 631712
duodecimal (12) 409a84
tridecimal (13) 295a86
tetradecimal (14) 1c4d5a
pentadecimal (15) 14ee9a

As an angle

1,012,420° = 2,812 × 360° + 100°
100° ≈ 1.745 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零一萬二千四百二十
Chinese (financial)
壹佰零壹萬貳仟肆佰貳拾
In other modern scripts
Eastern Arabic ١٠١٢٤٢٠ Devanagari १०१२४२० Bengali ১০১২৪২০ Tamil ௧௦௧௨௪௨௦ Thai ๑๐๑๒๔๒๐ Tibetan ༡༠༡༢༤༢༠ Khmer ១០១២៤២០ Lao ໑໐໑໒໔໒໐ Burmese ၁၀၁၂၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1012420, here are decompositions:

  • 23 + 1012397 = 1012420
  • 41 + 1012379 = 1012420
  • 47 + 1012373 = 1012420
  • 113 + 1012307 = 1012420
  • 131 + 1012289 = 1012420
  • 179 + 1012241 = 1012420
  • 191 + 1012229 = 1012420
  • 317 + 1012103 = 1012420

Showing the first eight; more decompositions exist.

Hex color
#0F72C4
RGB(15, 114, 196)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.114.196.

Address
0.15.114.196
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.114.196

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 1, 2420 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 2420-10-01 (MMDYYYY (US, single-digit day))
  • 2420-01-10 (DDMYYYY (Euro, single-digit month))
Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 1,012,420 and was likely granted around 1911.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.